Update case-app to 2.1.0-M28 (#2956)

Author: scala-steward

project/deps.sc

@@ -119,7 +119,7 @@ object Deps {
     .exclude(("com.github.plokhotnyuk.jsoniter-scala", "jsoniter-scala-core_2.13"))
   def bloopRifle       = ivy"io.github.alexarchambault.bleep:bloop-rifle_2.13:${Versions.bloop}"
   def bsp4j            = ivy"ch.epfl.scala:bsp4j:2.1.1"
-  def caseApp          = ivy"com.github.alexarchambault::case-app:2.1.0-M26"
+  def caseApp          = ivy"com.github.alexarchambault::case-app:2.1.0-M28"
   def collectionCompat = ivy"org.scala-lang.modules::scala-collection-compat:2.12.0"
   // Force using of 2.13 - is there a better way?
   def coursier = ivy"io.get-coursier:coursier_2.13:${Versions.coursier}"